Revised and expanded 2nd edition of this core book covering the principal aspects of the design, manufacture, installation and operation of hydraulic gates. Analyses in depth the selection of the gate type, the limits of their use, estimating their weight, operative forces, hoisting systems, design of structure and support elements, seals and hydrostatic and hydrodynamic forces. Inflatable gates and fusegates are also discussed, and new chapters on intake gates and intake trashracks have been added. Can be used both as a text-book and manual for the design of gates, and includes worked examples, drawings and many photographs to illustrate the concepts and methods involved-- Provided by publisher.